The semantics for counterfactuals due to David Lewis has been challenged by appealing to miracles. Miracles may skew a given similarity order in favour of those possible worlds which exhibit them. Lewis responded with a system of priorities that mitigates the significance of miracles when constructing similarity relations. We propose a prioritised ceteris paribus analysis of counterfactuals inspired by Lewis’ system of priorities. By analysing the couterfactuals with a ceteris paribus clause one forces out, in a natural manner, those possible (...) worlds which do not satisfy the requirements of the clause, thus excluding miracles. If no world can satisfy the ceteris paribus clause in its entirety, then prioritisation is triggered to select worlds that maximise agreement on those things which are favoured most. (shrink)

Investigation of “out-of-body experiences” has implications for understanding both normal bodily-self integration and its vulnerabilities. Beyond reported associations between OBEs and specific brain regions, however, there have been few investigations of neurochemical systems relevant to OBEs. Ketamine, a drug used recreationally to achieve dissociative experiences, provides a real-world paradigm for investigating neurochemical effects. We investigate the strength of the association of OBEs and ketamine use relative to other common drugs of abuse. Self-report data from an online survey indicate that both (...) lifetime frequency of ketamine use and OBEs during ketamine intoxication were more strongly related to the frequency of OBEs and related phenomena than other drugs. Moreover, the apparent effects of other drugs could largely be explained by associated ketamine use. The present results, consistent with the role of NMDA receptors in OBEs, should encourage future studies of the role of neurochemical systems in OBEs. (shrink)

Previously we reported a three-factor structure for hallucinations accompanying sleep paralysis . These earlier analyses were, however, based on retrospective accounts. In a prospective study, 383 individuals reported individual episodes online providing further evidence for the three-factor structure as well as clearer conceptually meaningful relations among factors than retrospective studies. In addition, reports of individual episodes permitted a more fine-grained analysis of the internal structure of factors to assess predictions based on the hypothesis that a sensed or felt presence is (...) a core experience affecting other SP hallucinations. Results were generally consistent with this hypothesis. In particular, associations among, and temporal stability of, sensory hallucinations were largely explained by their common association with FP. The findings are consistent with REM initiation of a threat activated vigilance system with pervasive effects on the SP experience and suggest a potential model for the thematic organization of nightmares and dreams more generally. (shrink)

Llewellyn's proposal that rapid eye movement dreaming reflects elaborative encoding mediated by the hippocampus offers an interesting perspective for understanding hallucinations accompanying sleep paralysis. SP arises from anomalous intrusion of REM processes into waking consciousness, including threat-detection systems mediated by the amygdala. Unique aspects of SP hallucinations offer additional prospects for investigation of Llewellyn's theory of elaborative encoding.

Nielsen [Nielsen, T. . Felt presence: Paranoid delusion or hallucinatory social imagery? Consciousness and Cognition, 16, 975–983.] raises a number of issues and presents several provocative arguments worthy of discussion regarding the experience of the felt presence during sleep paralysis . We consider these issues beginning with the nature of FP and its relation to affective-motivational systems and provide an alternative to Nielsen’s reduction of FP to a purely spatial hallucination. We then consider implications of the “normal social imagery” model. (...) We can find only one specific empirical hypothesis articulated within this framework and it turns out to be one that we explicitly addressed in our original paper. We also review our position regarding the possible relation of FP during SP to a number of related anomalous experiences and contrast FP to anomalous vestibular-motor phenomena. We review our position that the neuromatrix concept, in the light of available evidence, is more appropriately applied to V-M experiences than FP. Finally, we pursue speculations, raised in Nielsen’s commentary, on the wider implications of FP. (shrink)

Individuals living with rare conditions are faced with important challenges derived from the rarity of their conditions and aggravated by the low priority given to rare disease research. However, current realities of rare disease research require consideration of the relationship between subjectivity and ‘traditional’ objectivity. Objectivity in research has traditionally been associated with processes and descriptions that are independent of the investigator. The need for researchers to provide unbiased knowledge and achieve a balance between objectivity and the underlying values in (...) nursing and scientific research requires an examination of how objectivity is conceptualized within the context of rare disease research. The aim of this paper is to examine scientific objectivity in rare disease research from a philosophical viewpoint and, in doing so, demonstrate the need to redefine it to reflect the current scientific environment. As such, healthcare providers working on this field need to redefine objectivity around ethical and moral obligation to advance science in an equitable manner with the end goal to produce knowledge that is trustworthy and beneficial to our patients. (shrink)

Religious pluralism (the view that all the great world religions are equally true) is largely motivated by the fear that religious exclusivism ( the view that there is just one correct religion) leads to intolerance and oppression of those holding differing religious views. I claim that this suggests a false dichotomy: either be a tolerant pluralist or an intolerant exclusivist. I argue, first, that the seventeenth-century doctrine of toleration supports the claim that exclusivists of differing sects can peacefully coexist and, (...) second, that religious pluralism has harmful consequences. Exclusivism (tempered by toleration) is the best solution to the challenge of religious diversity. (shrink)

Religious pluralism (the view that all the great world religions are equally true) is largely motivated by the fear that religious exclusivism ( the view that there is just one correct religion) leads to intolerance and oppression of those holding differing religious views. I claim that this suggests a false dichotomy: either be a tolerant pluralist or an intolerant exclusivist. I argue, first, that the seventeenth-century doctrine of toleration supports the claim that exclusivists of differing sects can peacefully coexist and, (...) second, that religious pluralism has harmful consequences. Exclusivism (tempered by toleration) is the best solution to the challenge of religious diversity. (shrink)

This paper presents a new modal logic for ceteris paribus preferences understood in the sense of "all other things being equal". This reading goes back to the seminal work of Von Wright in the early 1960's and has returned in computer science in the 1990' s and in more abstract "dependency logics" today. We show how it differs from ceteris paribus as "all other things being normal", which is used in contexts with preference defeaters. We provide a semantic analysis and (...) several completeness theorems. We show how our system links up with Von Wright's work, and how it applies to game-theoretic solution concepts, to agenda setting in investigation, and to preference change. We finally consider its relation with infinitary modal logics. (shrink)

This paper presents a new modal logic for ceteris paribus preferences understood in the sense of “all other things being equal”. This reading goes back to the seminal work of Von Wright in the early 1960’s and has returned in computer science in the 1990’s and in more abstract “dependency logics” today. We show how it differs from ceteris paribus as “all other things being normal”, which is used in contexts with preference defeaters. We provide a semantic analysis and several (...) completeness theorems. We show how our system links up with Von Wright’s work, and how it applies to game-theoretic solution concepts, to agenda setting in investigation, and to preference change. We finally consider its relation with infinitary modal logics. (shrink)

In the process of completing his critical edition of Marcus of Orvieto's Liber de Moralitatibus, Girard J. Etzkorn happened upon a set of questions attributed to Henry of Ghent at the end of Rome's Bibliotheca Angelica codex 750. These questions are edited in this volume under the proviso "attributed to" so that scholars may compare the texts with other works of the Ghentian master known to be authentic. Etzkorn concludes that the ten questions appear to be of two literary (...) genres. Moreover, the ten questions seem to be "selected" questions and were not likely disputed at the same time. Future investigations are essential to find out if the questions may indeed be attributed to Henry himself or whether they were written by one of Henry's disciples who was copying the thoughts and words of the master. (shrink)

This article maintains that an important class of scientific generalizations should be reinterpreted: they have typically been understood as ceteris paribus laws, but are, in fact, generics. Four arguments are presented to support this thesis. One argument is that the interpretation in terms of ceteris paribus laws is a historical accident. The other three arguments draw on similarities between these generalizations and archetypal generics: they come with similar inferential commitments, they share a syntactic form, and the existing theories to make (...) sense of them are alike. Once these generalizations are properly understood as generics, the recent cognitive approach to generics can be extended to the study of the relevant sciences. The last section indicates ways in which this extension is fruitful for the two strands of research that we combine: the philosophy of science literature on generalizations and the semantics literature on generics. (shrink)

The expression conditional fallacy identifies a family of arguments deemed to entail odd and false consequences for notions defined in terms of counterfactuals. The antirealist notion of truth is typically defined in terms of what a rational enquirer or a community of rational enquirers would believe if they were suitably informed. This notion is deemed to entail, via the conditional fallacy, odd and false propositions, for example that there necessarily exists a rational enquirer. If these consequences do indeed follow from (...) the antirealist notion of truth, alethic antirealism should probably be rejected. In this paper we analyse the conditional fallacy from a semantic (i.e. model-theoretic) point of view. This allows us to identify with precision the philosophical commitments that ground the validity of this type of argument. We show that the conditional fallacy arguments against alethic antirealism are valid only if controversial metaphysical assumptions are accepted. We suggest that the antirealist is not committed to the conditional fallacy because she is not committed to some of these assumptions. (shrink)

There was a time when 'logic' just meant classical logic. The climate is slowly changing and non-classical logic cannot be dismissed off-hand. However, a metatheory used to study the properties of non-classical logic is often classical. In this paper, we will argue that this practice of relying on classical metatheories is problematic. In particular, we will show that it is a bad practice because the metatheory that is used to study a non-classical logic often rules out the very logic it (...) is designed to study. (shrink)

This paper is a step toward showing what is achievable using non-classical metatheory—particularly, a substructural paraconsistent framework. What standard results, or analogues thereof, from the classical metatheory of first order logic can be obtained? We reconstruct some of the originals proofs for Completeness, Löwenheim-Skolem and Compactness theorems in the context of a substructural logic with the naive comprehension schema. The main result is that paraconsistent metatheory can ‘re-capture’ versions of standard theorems, given suitable restrictions and background assumptions; but the shift (...) to non-classical logic may recast the meanings of these apparently ‘absolute’ theorems. (shrink)

ABSTRACTDo truth tables—the ordinary sort that we use in teaching and explaining basic propositional logic—require an assumption of consistency for their construction? In this essay we show that truth tables can be built in a consistency-independent paraconsistent setting, without any appeal to classical logic. This is evidence for a more general claim—that when we write down the orthodox semantic clauses for a logic, whatever logic we presuppose in the background will be the logic that appears in the foreground. Rather than (...) any one logic being privileged, then, on this count partisans across the logical spectrum are in relatively similar dialectical positions. (shrink)

This text is an outgrowth of notes prepared by J. Y. Girard for a course at the University of Paris VII. It deals with the mathematical background of the application to computer science of aspects of logic (namely the correspondence between proposition & types). Combined with the conceptual perspectives of Girard's ideas, this sheds light on both the traditional logic material & its prospective applications to computer science. The book covers a very active & exciting research area, & (...) it will be essential reading for all those working in logic & computer science. (shrink)

Despite spending more on health care than every other industrialized country, the U.S. ranks 37th in health outcomes. These differences cannot be explained away with differences in age and income, or even with quality of care. And, the rate of growth in health care spending in the U.S. continues to increase. The share of the Gross Domestic Product attributable to health care grew from 9% in 1980 to more than 17% in 2011. Health care costs are projected to account for (...) more than one-fifth of our economy by 2021. Despite spending more and more, the U.S. does not have better health outcomes than other countries. Worse, our increasing spending is largely attributable to preventable conditions. More than 85 cents of every dollar spent on health in the U.S. are spent on the treatment and management of chronic diseases, such as those caused by preventable conditions related to obesity and tobacco use. (shrink)

In this paper we explore the relationship between norms of belief revision that may be adopted by members of a community and the resulting dynamic properties of the distribution of beliefs across that community. We show that at a qualitative level many aspects of social belief change can be obtained from a very simple model, which we call ‘threshold influence’. In particular, we focus on the question of what makes the beliefs of a community stable under various dynamical situations. We (...) also consider refinements and alternatives to the ‘threshold’ model, the most significant of which is to consider changes to plausibility judgements rather than mere beliefs. We show first that some such change is mandated by difficult problems with belief-based dynamics related to the need to decide on an order in which different beliefs are considered. Secondly, we show that the resulting plausibility-based account results in a deterministic dynamical system that is non-deterministic at the level of beliefs. (shrink)

We present four classical theories of counterpossibles that combine modalities and counterfactuals. Two theories are anti-vacuist and forbid vacuously true counterfactuals, two are quasi-vacuist and allow counterfactuals to be vacuously true when their antecedent is not only impossible, but also inconceivable. The theories vary on how they restrict the interaction of modalities and counterfactuals. We provide a logical cartography with precise acceptable boundaries, illustrating to what extent nonvacuism about counterpossibles can be reconciled with classical logic.

In the late 20th century theorists within the radical feminist tradition such as Haraway highlighted the impossibility of separating knowledge from knowers, grounding firmly the idea that embodied bias can and does make its way into argument. Along a similar vein, Moulton exposed a gendered theme within critical thinking that casts the feminine as toxic ‘unreason’ and the ideal knower as distinctly masculine; framing critical thinking as a method of masculine knowers fighting off feminine ‘unreason’. Theorists such as Burrow have (...) picked up upon this tradition, exploring the ways in which this theme of overly masculine, or ‘adversarial’, argumentation is both unnecessary and serves as an ineffective base for obtaining truth. Rooney further highlighted how this unnecessarily gendered context results in argumentative double binds for women, undermining their authority and stifling much-needed diversity within philosophy as a discipline.These are damning charges that warrant a response within critical thinking frameworks. We suggest that the broader critical thinking literature, primarily that found within contexts of critical pedagogy and dispositional schools, can and should be harnessed within the critical thinking literature to bridge the gap between classical and feminist thinkers. We highlight several methods by which philosophy can retain the functionality of critical thinking while mitigating the obstacles presented by feminist critics and highlight how the adoption of such methods not only improves critical thinking, but is also beneficial to philosophy, philosophers and feminists alike. (shrink)

It has been an open question whether or not we can define a belief revision operation that is distinct from simple belief expansion using paraconsistent logic. In this paper, we investigate the possibility of meeting the challenge of defining a belief revision operation using the resources made available by the study of dynamic epistemic logic in the presence of paraconsistent logic. We will show that it is possible to define dynamic operations of belief revision in a paraconsistent setting.

In _Battling to the End _René Girard engages Carl von Clausewitz, the Prussian military theoretician who wrote _On War_. Clausewitz, who has been critiqued by military strategists, political scientists, and philosophers, famously postulated that "War is the continuation of politics by other means." He also seemed to believe that governments could constrain war. Clausewitz, a firsthand witness to the Napoleonic Wars, understood the nature of modern warfare. Far from controlling violence, politics follows in war's wake: the means of war (...) have become its ends. René Girard shows us a Clausewitz who is a fascinated witness of history's acceleration. Haunted by the French-German conflict, Clausewitz clarifies more than anyone else the development that would ravage Europe. _Battling to the End _pushes aside the taboo that prevents us from seeing that the apocalypse has begun. Human violence is escaping our control; today it threatens the entire planet. (shrink)

Standard reasoning about Kripke semantics for modal logic is almost always based on a background framework of classical logic. Can proofs for familiar definability theorems be carried out using anonclassical substructural logicas the metatheory? This article presents a semantics for positive substructural modal logic and studies the connection between frame conditions and formulas, via definability theorems. The novelty is that all the proofs are carried out with anoncontractive logicin the background. This sheds light on which modal principles are invariant under (...) changes of metalogic, and provides (further) evidence for the general viability of nonclassical mathematics. (shrink)

Le 15 décembre 2005, René Girard, lors de son entrée à l'Académie française, prononça l'éloge de son prédécesseur, le révérend père Carré. Michel Serres répondit à ce discours par un tableau de la vie et de l'oeuvre du récipiendaire dont, dit-il, la théorie compte parmi les plus fécondes du XXe siècle.

We present a single sequent calculus common to classical, intuitionistic and linear logics. The main novelty is that classical, intuitionistic and linear logics appear as fragments, i.e. as particular classes of formulas and sequents. For instance, a proof of an intuitionistic formula A may use classical or linear lemmas without any restriction: but after cut-elimination the proof of A is wholly intuitionistic, what is superficially achieved by the subformula property and more deeply by a very careful treatment of structural rules. (...) This approach is radically different from the one that consists in “changing the rule of the game” when we want to change logic, e.g. pass from one style of sequent to another: here, there is only one logic, which—depending on its use—may appear classical, intuitionistic or linear. (shrink)

The idea of relevant logic—that irrelevant inferences are invalid—is appealing. But the standard semantics for relevant logics involve baroque metaphysics: a three-place accessibility relation, a star operator, and ‘bad’ worlds. In this article we propose that these oddities express a mismatch between non-classical object theory and classical metatheory. A uniformly relevant semantics for relevant logic is a better fit.

L’objection la plus ancienne et la plus redoutable à la démocratie fait valoir que le gouvernement par le peuple dessert le gouvernement pour le peuple. Les citoyens manquant pour la plupart de sagesse ou de compétence, le bien commun serait mieux assuré en confiant le pouvoir à un individu éclairé ou à une élite experte. Une réponse commune à cette objection concède la prémisse mais affirme la priorité au gouvernement par le peuple sur le gouvernement pour le peuple : le (...) droit égal à la participation devrait l’emporter sur la promotion de la compétence, même si celle-ci est requise par le bon gouvernement. La démocratie se trouve alors réduite à un ensemble de procédures équitables, traitant les citoyens en égaux ; elle ne se définit plus par la poursuite du bien commun. Il est toutefois une autre réponse à l’objection, qui évite cette dérive vers un procéduralisme étroit. Elle consiste à nier la prémisse et à affirmer la sagesse politique du peuple. Il n’est pas vrai que le gouvernement pour le peuple serait mieux assuré en confiant le pouvoir à un petit nombre de sages ou d’experts, fussent-ils les meilleurs parmi les citoyens. Cette thèse remarquable peut paraître improbable. Sa défense peut pourtant s’appuyer sur l’un des arguments les plus intrigants élaborés par la philosophie politique aristotélicienne, qui inspire et éclaire les controverses philosophiques contemporaines sur la valeur du régime démocratique : l’argument de la sagesse de la multitude. (shrink)

Le conflit des libertés constitue un problème redoutable pour toute théorie des droits fondamentaux, tant du point de vue de leur justification que de leur mise en œuvre. La théorie rawlsienne de la justice comme équité suggère une réponse originale, qui cherche à éviter tant la mise en balance des libertés que leur absolutisation rigide. Le système des libertés de base est strictement prioritaire par rapport à toute autre considération, mais les libertés elles-mêmes ne sont pas, prises individuellement, absolues : (...) elles doivent être ajustées les unes aux autres pour former un système cohérent, où les contradictions sont évitées. Elles ne sont toutefois pas négociables, car cet ajustement doit les réguler sans les restreindre. L’article reconstruit et évalue cette réponse au conflit des libertés. Il montre qu’elle n’est convaincante que si l’on renonce à l’exigence rawlsienne d’une priorité absolue du système des libertés. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:There are only three surviving biographical notices regarding Marcus of Orvieto: two as colophons of Vatican manuscripts and a third as an entry in a catalog of the papal library in Avignon where we read: "Item, liber de mortalitatibus septem Martini de Urbevetani Ordinis Minorum." While the spelling of the book title and its author can be attributed to scribal errors or misreadings, the 'seven,' place of origin, and (...) religious order affiliation are accurate. Marcus's Liber de Moralitatibus is indeed divided into seven treatises: On the celestial bodies, On the elements, On the birds, On the fish, On the animals, On trees and plants and On precious gems. The colophons of the two Vatican manuscripts attest to his being a Friar Minor: Ego frater Marcus Urbis Veteris Fratrum Minorum Ordinis pauperculus. The prooemium of the Liber de Moralitatibus attests to the fact that Marcus's patron was Benedict Gaetani cardinal of St. Nicholas in carcere Tulliano,' the future pope Boniface VIII. This would put the time of composition circa 1290. Several allusions in Marcus's work to Paris, viz. the Parisian masters, its patron Ste. Genevieve, indicate that Marcus was at one time a student there and it is conceivable that Benedict commissioned the work while he was a papal legate there. Marcus's opus falls into the category of exempla literature, i.e. a source book for preachers.We offer the English translation of the chapter on pelicans as typical of Marcus's way of proceeding which, generally speaking, is threefold. First a physical description, which was generally copied from Bartholomew of England's 'On the Properties of Things,' secondly its spiritual signification attested to by pertinent passages from Scripture and bolstered by citations from the Fathers and Doctors of the Church, and thirdly examples of persons who exemplify the spiritual lesson either supportively or adversely. The legend of the pelican piercing its breast in order to revivify its dead chicks was familiar in Christian literature and art signifying analogously Christ's salvific blood redeeming the human race from its fallen state. The following is the English translation of Marcus's treatise 3, 'De avibus,' chapter 31.Chapter 31: On the pelicanThe pelican is seen to possess the following conditions or properties according to the doctors.1. First of all, as Isidore says, it is a "bird dwelling in solitude along the banks of the Nile." This signifies preachers and contemplative persons who flee the vanities of the world and occupy themselves with heavenly consolations or delightful and re-creative consolations of Sacred Scripture, Psalm 54, 8-9: Far away I would flee; I would lodge in the wilderness. I would hasten to find shelter from the violent storm and the tempest. Bernard, On the Canticle of Canticles and in his sermons: "Divine consolation is delicate, it is not given to those preoccupied with what is alien to it." Ambrose, On Luke: "Those preoccupied with secular vanities cannot know what is divine."2. Secondly, as Isidore says, whatever it eats, it first dips in water with its foot and having done so, using the foot as a hand as it were, puts it [the morsel] in its mouth. This signifies doctors [i. e. teachers] and preachers who practice what they teach or preach after the example of the Apostle, Romans 15, 18: I will not dare to speak of anything except what Christ has accomplished through me. Jerome, To Nepotian: "Make sure your deeds do not 'confound' your words, lest when you speak in the assembly someone might say to himself: 'Physician, cure yourself'."3. Thirdly, as Isidore says, of all the birds, with the exception of the phylargum, only the pelican uses its foot as a hand. This signifies a devout religious who frequently, motivated by holy desires and affections, prefers holy meditations rather than manual labor. 1Tim. 4: 7-8: Train yourself for devotion, for while physical training is of.. (shrink)

L'univers de René Girard est un univers complexe dans lequel se mêlent étroitement les éléments biographiques et les différentes disciplines auxquelles il a fait appel pour mener à bien ses travaux. Centrés sur le phénomène du désir mimétique, ces entretiens dévoilent la genèse de sa théorie dans les domaines littéraires et religieux. Le fil conducteur en est le principe des doubles mimétiques qu'il a analysés chez des auteurs comme Stendhal, Proust, Dostoïevski et Shakespeare. Il se réfère également à la (...) Bible, considérant que " la donnée fondamentale de notre temps est la crise du religieux ". Ses ouvrages relèvent à la fois de la littérature comparée, de l'anthropologie et de l'histoire des religions. Il trouve aussi, dans les échanges économiques, la confirmation de sa théorie. En effet, selon lui, le monde moderne est à la recherche du sacré qu'il a perdu, et, dans ce processus, il se retrouve victime d'un mimétisme exacerbé. René Girard déploie son esprit critique à l'encontre de la société de concurrence et de la consommation ; ce faisant, il compare les sociétés française et américaine du point de vue d'un intellectuel français installé au coeur de l'Amérique. (shrink)

In 1988, Nadine Dormoy conducted a series of interviews with Rene Girard after a number of books and conferences had situated his work in a new context of research on self-organizing systems. In these interviews, Girard discusses the intellectual activity that followed the 1982 Stanford University conference, Disorder and Order. Girard also discusses Theater of Envy, his book on Shakespeare, as well as corrects several misunderstandings of his mimetic hypothesis.

We study increasing F-sequences, where F is a dilator: an increasing F-sequence is a sequence (indexed by ordinal numbers) of ordinal numbers, starting with 0 and terminating at the first step x where F(x) is reached (at every step x + 1 we use the same process as in decreasing F-sequences, cf. [2], but with "+ 1" instead of "- 1"). By induction on dilators, we shall prove that every increasing F-sequence terminates and moreover we can determine for every dilator (...) F the point where the increasing F-sequence terminates. We apply these results to inverse Goodstein sequences, i.e. increasing (1 + Id) (ω) -sequences. We show that the theorem every inverse Goodstein sequence terminates (a combinatorial theorem about ordinal numbers) is not provable in ID 1 . For a general presentation of the results stated in this paper, see [1]. We use notions and results concerning the category ON (ordinal numbers), dilators and bilators, summarized in [2, pp. 25-31]. (shrink)

Inspiré de la pratique de l’auteure auprès de personnes en situation d’exil et de précarité rencontrées en centre d’hébergement pour demandeurs d’asile, cet article questionne la parentalité interne (Ciccone, 2012) dans l’économie psychique d’un homme confronté pendant son enfance aux mauvais traitements de son père et au départ définitif de sa mère, longtemps violentée. L’auteure s’intéresse à ses efforts pour se différencier des violences subies mais aussi à la reproduction inconsciente des rapports d’emprise et d’abandon, manifeste dans le lien transférentiel, (...) et à sa propre paternité dans un parcours d’exil et d’errance en quête d’objets parentaux. Le travail thérapeutique se focalise sur la restauration de ses capacités de contenance et de transformation dans une clinique du lien intersubjectif et intrapsychique. (shrink)

L’idéal démocratique est accusé d’être irréaliste. Le gouvernement du peuple par le peuple et pour le peuple serait une chimère dans les sociétés contemporaines. Il faudrait lui préférer les visées plus modestes associées à l’élection : un droit de vote égal et la satisfaction du plus grand nombre. La démocratie ne se laisse pourtant pas réduire à la compétition électorale. Les acteurs et les institutions politiques qui s’en réclament invoquent non seulement un marché, où rivalisent des intérêts privés, mais un (...) forum, où s’affrontent des visions adverses de la justice. Ils attendent de la délibération collective qu’elle serve l’autonomie politique et le bien commun, mais savent aussi qu’elle peut les menacer, lorsque la liberté, l’égalité ou la publicité lui font défaut. Cette enquête philosophique interroge la pertinence de l’idéal démocratique pour des sociétés complexes, dotées d’institutions représentatives et soumises à la communication de masse. Elle montre à quelles conditions cet idéal peut aujourd’hui orienter la critique et l’action. Les citoyens peuvent encore aspirer à se gouverner eux-mêmes, donc à délibérer en égaux. -/- The democratic ideal is accused of being unrealistic. Government of the people by the people and for the people would be a chimera in contemporary societies. The more modest aims associated with election should be preferred: equal suffrage and the satisfaction of the greatest number. But democracy cannot be reduced to electoral competition. The political actors and institutions that claim it invoke not only a market, where private interests compete, but also a forum, where opposing visions of justice confront each other. They expect collective deliberation to serve political autonomy and the common good, but they also know that it can threaten them when it lacks freedom, equality or publicity. This philosophical inquiry questions the relevance of the democratic ideal for complex societies with representative institutions and subject to mass communication. It shows under what conditions a deliberative understanding of this ideal can today orient criticism and action. Citizens can still aspire to govern themselves, hence to deliberate as equals. (shrink)

These lectures on logic, more specifically proof theory, are basically intended for postgraduate students and researchers in logic. The question at stake is the nature of mathematical knowledge and the difference between a question and an answer, i.e., the implicit and the explicit. The problem is delicate mathematically and philosophically as well: the relation between a question and its answer is a sort of equality where one side is ``more equal than the other'': one thus discovers essentialist blind spots. Starting (...) with Godel's paradox --so to speak, the incompleteness of answers with respect to questions--the book proceeds with paradigms inherited from Gentzen's cut-elimination. Various settings are studied: sequent calculus, natural deduction, lambda calculi, category-theoretic composition, up to geometry of interaction, all devoted to explicitation, which eventually amounts to inverting an operator in a von Neumann algebra. Mathematical language is usually described as referring to a preexisting reality. Logical operations can be given an alternative procedural meaning: typically, the operators involved in GoI are invertible, not because they are constructed according to the book, but because logical rules are those ensuring invertibility. Similarly, the durability of truth should not be taken for granted: one should distinguish between imperfect and perfect modes. The procedural explanation of the infinite thus identifies it with the unfinished, i.e., the perennial. But is perenniality perennial? This questioning yields a possible logical explanation for algorithmic complexity. This highly original course on logic by one of the world's leading proof theorists challenges mathematicians, computer scientists, physicists, and philosophers to rethink their views and concepts on the nature of mathematical knowledge in an exceptionally profound way. (shrink)

Hervaeus Natalis distinguishes two types of items that can have esse obiective in the intellect: objects of acts of intellection (man, this cat, etc.) and properties unapprehended by these acts, or background properties (being a species, being a particular, etc.), that are beings of reason. Yet, his conception of the esse obiective of objects evolved. First, he had a neutral conception of esse obiective: items presenting themselves to the intellect are cognized, transparently, without being altered in the process. Later, he (...) developed an ontologically committing conception of the objective being of objects: items presenting themselves to the intellect take on rational being (esse rationis) as such. This evolution transpires because Hervaeus introduces intentional relations as what makes the cognized item be objectively in the intellect and includes them within the class of background properties (being of reason). Both these conceptions manage to account for our access to extra-mental things. -/- . (shrink)

Recent research highlights that inflammatory signaling pathways such as pattern recognition receptor (PRR) signaling and inflammatory cytokine signaling play an important role in both on‐demand hematopoiesis as well as steady‐state hematopoiesis. Knockout studies have demonstrated the necessity of several distinct pathways in these processes, but often lack information about the contribution of specific cell types to the phenotypes in question. Transplantation studies have increased the resolution to the level of specific cell types by testing the necessity of inflammatory pathways specifically (...) in donor hematopoietic stem and progenitor cells (HSPCs) or in recipient niche cells. Here, we argue that for an integrated understanding of how these processes occur in vivo and to inform the development of therapies that modulate hematopoietic responses, we need studies that knockout inflammatory signaling receptors in a cell‐specific manner and compare the phenotypes caused by knockout in individual niche cells versus HSPCs. (shrink)

Go back to An-fang, the Peace Square at An-Fang, the Beginning Place at An-Fang, where all things start (… ) An-Fang was near a city, the only living city with a pre-atomic name (… ) The headquarters of the People Programmer was at An-Fang, and there the mistake happened: A ruby trembled. Two tourmaline nets failed to rectify the laser beam. A diamond noted the error. Both the error and the correction went into the general computer. Cordwainer SmithThe Dead Lady (...) of Clown Town, 1964. (shrink)